A while back we discussed misters and the mods I did to a mister. The
jet is 2mm with a pretty small annular ring around it. That sounds
pretty much like what you want.
The machining work involved is just drilling one 2mm hole in a lathe and
cutting the 2mm tube to length. It needs pressurized coolant but your
coke bottle setup would do the trick.
Les
On 30/09/2019 18:16, Gene Heskett wrote:
Greetings all;
Where can I find a mister assembly with a tip 1/4 the size of the common
tip used with the bendable linked coax hosing everybody sells for around
$10 USD a copy.
Working on the heat sink yesterday I wrote an M7 as I started the cut
run, with an M9 at the end so I wasn't wasting fluid when backed away
doing the retrace motions. But by the time I got the pressures and flows
about right, and my finger was getting damp when held downwind of the
tool, I had a drop of fluid hanging on the tip, not being broken into a
mist, but only occasionally slobbered in the general direction of the
tool. I need an inner tip much less than 4mm in diameter, perhaps 2mm at
the most, and the air cone surrounding it having a reduced to maybe .1mm
clearance to the center, liquid orifices OD.
Such a "half scale" tip would still adequately wet the small tools, up to
1/4" used in a 6040 gantry, while reducing the liquid usage a lot. Do I
have to make it?
My misting setup is too complex IMO, I have a cheap pressure regulator in
the hose from the air compressor, dropping it to around 4 or 5 psi, that
feeds the outer hose, and goes on to a 7Oz coke bottle by way of another
cheap regulator to pressurize the bottle and push fluid out of it, into
a 10 foot coil of the smallest capillary tubeing I cold get for flow
restriction, and that is delivered to the block on the spindle motor
bracket and thence to the inner hose into the nozzle. So it dribbles
slowly out of the nozzle at about a drop a second and is broken up by
the air flow from the outer cone. Far too complex for no better a
misting job than it does. It also keeps the air compressor too busy.
Can I buy a better one? Where?
Cheers, Gene Heskett
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